The Robo 3D printer works great and the Simplify3D Slicer program plays well with MoI.

What I have to learn to do better is add gap tolerances where pieces join together. For example, if a power receptacle is 1" x 2" and I model it as such and Boolean Diff it with the box to make an opening, the receptacle won't fit. I have to temporarily enlarge the receptacle model so the resulting hole will be slightly larger. Maybe there is an opportunity for a specialized Boolean Diff script: Temporarily enlarge cutting object by x%, or enlarge cutting object by x thousandths of an inch in all dimensions, just while doing the Boolean Diff. After the Boolean, the object automatically reverts back to original size.

The fixture is for powder coating very small metal parts in a precisely controlled, even & repeatable way without using a clumsy, messy, hard to control, hand-held powder coating gun. I can't share the entire process and related custom hardware for competitive reasons, but it works very well :)

Ed Ferguson